Improvement in locomotive-engines



N. PETERS, FMoTo-UTHDGRAPHER. wAsmNGToN n C UNITED STATES PATENT OFFICE.

IMPROVEMENT IN LOCOMOTIVE-ENGINES.

Specification forming part of Letters Patent No. 43,898, (lated August23, 1864.

To all whom it may concern,.-

Be it known that I, Isaac H. GoNeDoN, of Springfield, in the county ofSangamon and State of Illinois, have invented a new and usefulImprovement in the Smoke-Arch of a Locomotive-Engine, and I do herebydeclare the following to be a full and exact description of the same,reference being had to the accompanying drawings, making part of thisspecification, in which-. L

Figure l is a front end view of my improved smoke-arch, the end Vpieceor plate being removed to expose the interior. Fig. 2 is a verticalsection in the line xx.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention consists in a novel and improved method of disposing ofthe sparks from the iire of an engine, in order to prevent them fromflying or passing along the sides of the train into the faces ofpassengers or endangering the safety of property a-long the line of therailroad. My invention provides means whereby the sparks are caused topass out through a conducting-pipe at the under side of the engine, andbe submitted to the action of steam in such manner that they will becompletely extinguished and rendered harmless before reaching the openair.

In order that others skilled in the art to which my invention appertainsmay be enabled to fullyl understand and' use the same, I will proceed todescribe its construction and operation.

In the accompanying drawings, A may repsent a smoke-arch, which is to belocated at the front end of an engine and receive the smoke, sparks, andother matter from the iixebox through tubes passing through the `boilerin customary manner. B is a sieve or spark-arrester, located within thearch A at a point in greater or less proximity with the top of theboiler and above the tubes o thereof, so that all smoke, sparks, andcinders from the tire-box must enter the arch A at points below the saidspark-arrester.

O C are exhaust-pipes, which, in addition to their function of carryingoii' steam, are employed to inject the same into the arch A for thepurpose of creating a vacuum within the same, and thereby producing thenecessary draft for the tire through the boilertubes c. These pipes C Copen within the arch just above the spark-arrester B, and the steamtherefrom passes out of the arch at the opening A.

D D are jet-pipes communicating with the exhaust-pipes C C, andextending therefrom into a pipe, E, which extends from the converging orhopper-shaped box E to within, say, eight inches of the ground, said boxE',

with its pipe E, being located at the forward end of the arch A. Whenthe pipes C C are exhausting steam, a quantity thereof passes into thejet-pipes l) D, thence into the pipe E, from which it passes out at theunderside of the engine. e

Now, it is manifest that whenV steam is injected from the exhaust-pipesC O into the arch A there is a tendency of the air to rush up throughthe discharge-pipe E to supply the vacuum, but the current which wouldpass up through this pipe E is overcome by the steam from the jet-pipesD D. Thus while the smoke is permitted to pass upward and out at theopening A, the sparks and cinders are arrested by the sieve B, and asthe discharge of steam from the pipes D produces a contrary current inthe direction of the pipe E,the said sparks and cinders descend into-thebox E', and thence out 'upon the groundrthrough the pipe E. In passingthrough the pipe E the sparks and live cinders come Within the influenceof the steam, by which they are deadened or extinguished, so that whenthey-are deposited upon the ground there will be no danger ot' thesleepers or other combustible material taking re therefrom. It will beseen that the currentv toward the pipes E will not permit anything fromthe fire-box to settle or accumulate within the arch A, and hence thelatter will always remain in a clean condition and be preserved from theinjury which might accrue from the lodgment of burning cinders orsparks.

Having thus described my invention, what I claim as new therein, anddesire to secure by Letters Patent, is-

Thejet-pipes D D, communieatingwith the exhaust-pipes C C, and employed,in conj unction with the hopper-shaped box E and discharge-pipe E, tocause the sparks, &c., to pass out and be deposited at the under side ofthe engine, and at the same time deaden or extinguish the same,substantially in the manner and for the purpose specified.

W. C. WHITNEY, DAVID S. IVEs.

